5 Frequency bands and channel arrangement
25.1023GPPRelease 17TSUser Equipment (UE) radio transmission and reception (TDD)
5.1 General
The information presented in this section is based on the chip rates of 3.84 Mcps Option, 1.28 Mcps Option and 7.68 Mcps Option.
NOTE: Other chip rates may be considered in future releases.
5.2 Frequency bands
UTRA/TDD is designed to operate in the following bands;
a) 1900 – 1920 MHz: Uplink and downlink transmission
2010 – 2025 MHz Uplink and downlink transmission
b) 1850 – 1910 MHz: Uplink and downlink transmission
1930 – 1990 MHz: Uplink and downlink transmission
c) 1910 – 1930 MHz: Uplink and downlink transmission
d) 2570 – 2620 MHz: Uplink and downlink transmission
e) 2300—2400 MHz: Uplink and downlink transmission
f) 1880 – 1920 MHz: Uplink and downlink transmission
Note 1: Deployment in existing or other frequency bands is not precluded.
Note 2: In China, Band a only includes 2010 – 2025 MHz for 1.28 Mcps TDD option.
5.3 TX-RX frequency separation
5.3.1 3.84 Mcps TDD Option
No TX-RX frequency separation is required as Time Division Duplex (TDD) is employed. Each TDMA frame consists of 15 timeslots where each timeslot can be allocated to either transmit or receive.
5.3.2 1.28 Mcps TDD Option
No TX-RX frequency separation is required as Time Division Duplex (TDD) is employed. Each subframe consists of 7 main timeslots where all main timeslots (at least the first one) before the single switching point are allocated DL and all main timeslots (at least the last one) after the single switching point are allocated UL.
5.3.3 7.68 Mcps TDD Option
No TX-RX frequency separation is required as Time Division Duplex (TDD) is employed. Each TDMA frame consists of 15 timeslots where each timeslot can be allocated to either transmit or receive.
5.4 Channel arrangement
5.4.1 Channel spacing
5.4.1.1 3.84 Mcps TDD Option
The nominal channel spacing is 5 MHz, but this can be adjusted to optimise performance in a particular deployment scenario.
5.4.1.2 1.28 Mcps TDD Option
The nominal channel spacing is 1.6 MHz, but this can be adjusted to optimise performance in a particular deployment scenario.
5.4.1.3 7.68 Mcps TDD Option
The nominal channel spacing is 10 MHz, but this can be adjusted to optimise performance in a particular deployment scenario.
5.4.2 Channel raster
The channel raster is 200 kHz for all bands, which means that the carrier frequency must be a multiple of 200 kHz.
5.4.2.1 3.84 Mcps TDD Option
In addition a number of additional centre frequencies are specified according to table 5.1, which means that the centre frequencies for these channels are shifted 100 kHz relative to the general raster.
5.4.3 Channel number
The carrier frequency is designated by the UTRA absolute radio frequency channel number (UARFCN). The value of the UARFCN in the IMT2000 band is defined in the general case as follows:
Nt = 5*F 0.0 MHz F 3276.6 MHz
where F is the carrier frequency in MHz
Additional channels applicable to operation in the frequency band defined in sub-clause 5.2(d) are defined via the following UARFCN definition:
Nt = 5 * (F – 2150.1 MHz) 2572.5 MHz F 2617.5 MHz
5.4.4 UARFCN
5.4.4.1 3.84 Mcps TDD Option
The following UARFCN range shall be supported for each band:
Table 5.1: UTRA Absolute Radio Frequency Channel Number 3.84 Mcps TDD Option
|
Frequency Band |
Frequency Range |
UARFCN Uplink and Downlink transmission |
Additional UARFCN Uplink and Downlink transmission |
|
For operation in frequency band as defined in subclause 5.2 (a) |
1900-1920 MHz 2010-2025 MHz |
9512 to 9588 10062 to 10113 |
– |
|
For operation in frequency band as defined in subclause 5.2 (b) |
1850-1910 MHz 1930-1990 MHz |
9262 to 9538 9662 to 9938 |
– |
|
For operation in frequency band as defined in subclause 5.2 (c) |
1910-1930 MHz |
9562 to 9638 |
– |
|
For operation in frequency band as defined in subclause 5.2 (d) |
2570-2620 MHz |
12862 to 13088 |
2112, 2137, 2162, 2187, 2212, 2237, 2262, 2287, 2312, 2337 |
5.4.4.2 1.28 Mcps TDD Option
The following UARFCN range shall be supported for each band:
Table 5.2: UTRA Absolute Radio Frequency Channel Number 1.28 Mcps TDD Option
|
Frequency Band |
Frequency Range |
UARFCN Uplink and Downlink transmission |
|
For operation in frequency band as defined in subclause 5.2 (a) |
1900-1920 MHz 2010-2025 MHz |
9504 to 9596 10054 to 10121 |
|
For operation in frequency band as defined in subclause 5.2 (b) |
1850-1910 MHz 1930-1990 MHz |
9254 to 9546 9654 to 9946 |
|
For operation in frequency band as defined in subclause 5.2 (c) |
1910-1930 MHz |
9554 to 9646 |
|
For operation in frequency band as defined in subclause 5.2 (d) |
2570-2620 MHz |
12854 to 13096 |
|
For operation in frequency band as defined in subclause 5.2 (e) |
2300-2400 MHz |
11504 to 11996 |
|
For operation in frequency band as defined in subclause 5.2 (f) |
1880-1920 MHz |
9404 to 9596 |
5.4.4.3 7.68 Mcps TDD Option
The following UARFCN range shall be supported for each band:
Table 5.3: UTRA Absolute Radio Frequency Channel Number 7.68 Mcps TDD Option
|
Frequency Band |
Frequency Range |
UARFCN Uplink and Downlink transmission |
Additional UARFCN Uplink and Downlink transmission |
|
For operation in frequency band as defined in subclause 5.2 (a) |
1900-1920 MHz 2010-2025 MHz |
9512 to 9588 10062 to 10113 |
– |
|
For operation in frequency band as defined in subclause 5.2 (b) |
1850-1910 MHz 1930-1990 MHz |
9262 to 9538 9662 to 9938 |
– |
|
For operation in frequency band as defined in subclause 5.2 (c) |
1910-1930 MHz |
9562 to 9638 |
– |
|
For operation in frequency band as defined in subclause 5.2 (d) |
2570-2620 MHz |
12874 to 13076 |
– |